6889957 has 4 divisors (see below), whose sum is σ = 6902476. Its totient is φ = 6877440.

The previous prime is 6889937. The next prime is 6889963. The reversal of 6889957 is 7599886.

6889957 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4955076 + 1934881 = 2226^2 + 1391^2 .

It is a cyclic number.

It is not a de Polignac number, because 6889957 - 2¹⁵ = 6857189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6889937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5394 + ... + 6547.

It is an arithmetic number, because the mean of its divisors is an integer number (1725619).

Almost surely, 2^6889957 is an apocalyptic number.

It is an amenable number.

6889957 is a deficient number, since it is larger than the sum of its proper divisors (12519).

6889957 is a wasteful number, since it uses less digits than its factorization.

6889957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12518.

The product of its digits is 1088640, while the sum is 52.

The square root of 6889957 is about 2624.8727588209. The cubic root of 6889957 is about 190.2854159120.

The spelling of 6889957 in words is "six million, eight hundred eighty-nine thousand, nine hundred fifty-seven".